Crucible tunnel kiln structure

Abstract

The utility model discloses a crucible tunnel kiln structure which comprises a kiln body, and combustion chambers are installed on the two side faces of the kiln body. Through the cooperative action of a main pipe, a smoke exhaust pipe, a filter chamber, a filter plate, a second fan and a communicating pipe, when a combustion chamber in the kiln body works, high-temperature gas is generated, suction force generated by the second fan is transmitted into the main pipe and the smoke exhaust pipe through the filter chamber, and the high-temperature gas can be conveyed into the combustion chamber again under the guidance of the second fan; therefore, the suction proportion of the combustion chamber to the new air can be reduced, the heating loss of the combustion equipment to the new air is reduced, the loss of heat energy is avoided, high efficiency and energy conservation of the crucible tunnel kiln are realized, the gas can be filtered by the filter plate in the high-temperature gas conveying process, smoke dust particles in the high-temperature gas are filtered out as much as possible, and the service life of the crucible tunnel kiln is prolonged. Therefore, smoke dust particles can be prevented from being deposited on the surface of the combustion equipment in the heating process, and the heating performance of the combustion equipment is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel kilns, in particular to a crucible tunnel kiln structure. Background Art

[0002] Tunnel kiln is a kind of continuous firing thermal equipment widely used in ceramic firing. It is a tunnel-like kiln built with refractory materials, thermal insulation materials and building materials, equipped with kiln cars and other vehicles. Tunnel kiln can be divided into preheating zone, firing zone and cooling zone. First, the preheating zone occupies 30-45% of the total length of the kiln, and the temperature range is from room temperature to 900℃; the firing zone occupies 10-33% of the total length of the kiln, and the temperature range is from 900℃ to the highest temperature; the cooling zone occupies 38-46% of the total length of the kiln, and the temperature range is from the highest temperature to the temperature of the product out of the kiln. Tunnel kiln is widely used in the roasting production of ceramic products, and is also used in metallurgical industries such as abrasives.

[0003] At present, the high-temperature flue gas generated by the combustion of the traditional tunnel kiln flows along the tunnel toward the kiln head under the action of the chimney or induced draft fan at the front end of the tunnel kiln, and gradually preheats the products entering the kiln. This section constitutes the preheating zone of the tunnel kiln. However, after the high-temperature flue gas preheats the products in the kiln, the flue gas will be discharged to the outside through the chimney under the guidance of the induced draft fan, resulting in a large amount of heat waste. In addition, the combustion machine in the firing zone needs to continuously heat the new air, thereby increasing the combustion loss of the combustion machine, which affects the economic benefits of the enterprise's production. For this reason, we provide a crucible tunnel kiln structure to solve the above problems. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a crucible tunnel kiln structure with high efficiency and energy saving.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a crucible tunnel kiln structure, including a kiln body, combustion chambers are installed on both sides of the kiln body, a filter chamber is fixedly connected to the upper surface of the kiln body, a main pipe is fixedly connected to the left side of the filter chamber, three groups of smoke exhaust pipes are fixedly connected to the outer surface of the main pipe, and the inner wall of the smoke exhaust pipe is connected to the inner wall of the kiln body, a filter plate is inserted into the inner wall of the filter chamber, a second fan is installed on the right side of the filter chamber, a connecting pipe is fixedly connected to the air outlet end of the second fan, and the inner wall of the connecting pipe is connected to the combustion chamber.

[0006] Preferably, in the above-mentioned crucible tunnel kiln structure, a first fan is fixedly connected to the upper surface of the kiln body, an air suction end of the first fan is fixedly connected to the outer surface of the main pipe, a cleaning component is provided on the inner wall of the filter chamber, an air outlet end of the first fan is fixedly connected to a chimney, and the bottom surface of the chimney is fixedly connected to the upper surface of the kiln body.

[0007] Preferably, the above-mentioned crucible tunnel kiln structure, wherein the left end of the kiln body is provided with a feeding furnace door, the right end of the kiln body is provided with a discharging furnace door, both sides of the kiln body are provided with rapid cooling fans, the inner wall of the kiln body is provided with two symmetrical through holes, the inner wall of the kiln body is provided with two symmetrical guide grooves, the bottom surface of the kiln body is fixedly connected to a base, one end of the base is provided with a driving device, the outer surface of the base is provided with a material transport vehicle, and the outer surface of the material transport vehicle is slidably connected to the inner wall of the guide groove.

[0008] Preferably, in the above-mentioned crucible tunnel kiln structure, the cleaning assembly includes a motor, a rotating rod and a bracket, the outer surface of the motor is fixedly embedded in the outer surface of the filter chamber, the outer surface of the rotating rod is rotatably connected to the inner wall of the filter chamber, and the output end of the motor is fixedly connected to one end of the rotating rod.

[0009] Preferably, in the above-mentioned crucible tunnel kiln structure, the outer surface of the bracket is fixedly connected to the inner wall of the filter chamber, the outer surface of the rotating rod is fixedly connected to the first bevel gear, the inner wall of the bracket is rotatably connected to a connecting shaft, one end of the connecting shaft is fixedly connected to a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0010] Preferably, in the above-mentioned crucible tunnel kiln structure, one end of the connecting shaft away from the second bevel gear is fixedly connected to a mounting plate, and the outer surface of the mounting plate is fixedly connected to a cleaning brush.

[0011] The advantages and beneficial effects of the utility model are as follows: by setting the cooperation between the main pipe, the smoke exhaust pipe, the filter chamber, the filter plate, the second fan and the connecting pipe, when the combustion chamber inside the kiln body is working, high-temperature gas will be generated, and the suction force generated by the second fan will be transmitted to the main pipe and the smoke exhaust pipe through the filter chamber, and under the guidance of the second fan, the high-temperature gas can be re-transported to the inside of the combustion chamber, thereby reducing the intake ratio of new air in the combustion chamber, thereby reducing the heating loss of the combustion equipment to the new air and avoiding the loss of heat energy, realizing high efficiency and energy saving of the crucible tunnel kiln, and in the process of high-temperature gas transportation, the filter plate can filter the gas, so that the smoke particles in the high-temperature gas are completely filtered out, thereby ensuring the purity of the gas, thereby avoiding the smoke particles from being deposited on the surface of the combustion equipment during the heating process, affecting the heating performance of the combustion equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3It is a schematic diagram of the internal structure of the filter chamber of the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the cleaning component of the utility model.

[0016] In the figure: 1. kiln body; 2. combustion chamber; 3. first fan; 4. main pipe; 5. exhaust pipe; 6. filter chamber; 7. filter plate; 8. second fan; 9. connecting pipe; 10. cleaning assembly; 1001. motor; 1002. rotating rod; 1003. first bevel gear; 1004. bracket; 1005. connecting shaft; 1006. second bevel gear; 1007. mounting plate; 1008. cleaning brush; 11. chimney; 12. inlet furnace door; 13. outlet furnace door; 14. quenching fan; 15. base; 16. material transport vehicle; 17. driving device; 18. through hole; 19. guide groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is combined with the drawings and embodiments. The following is combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figures 1 to 4 As shown, a crucible tunnel kiln structure includes a kiln body 1, combustion chambers 2 are installed on both sides of the kiln body 1, a filter chamber 6 is fixedly connected to the upper surface of the kiln body 1, and a sealing cover is installed on the filter chamber 6 in this embodiment to prevent the high-temperature gas inside the filter chamber 6 from being lost, a main pipe 4 is fixedly connected to the left side of the filter chamber 6, and three groups of exhaust pipes 5 are fixedly connected to the outer surface of the main pipe 4, and the inner wall of the exhaust pipe 5 is connected to the inner wall of the kiln body 1. In this embodiment, the three groups of exhaust pipes 5 are equidistantly installed, so that when the high-temperature gas passes through the first fan 3 and the second fan 8, At this time, the three groups of smoke exhaust pipes 5 can inhale the high-temperature gas, and in the process of the high-temperature gas flowing, the temperature gradually decreases according to the flow distance, thereby forming a step-by-step preheating of the preheating zone part at the left end of the kiln body 1. The inner wall of the filter chamber 6 is plugged with a filter plate 7. In this embodiment, the filter plate 7 can filter the high-temperature gas and remove the smoke particles in the gas, thereby ensuring the purity of the gas. A second fan 8 is installed on the right side of the filter chamber 6, and a connecting pipe 9 is fixedly connected to the air outlet end of the second fan 8, and the inner wall of the connecting pipe 9 is connected to the combustion chamber 2.

[0019] The upper surface of the kiln body 1 is fixedly connected with a first fan 3 , the air suction end of the first fan 3 is fixedly connected to the outer surface of the main pipe 4 , and the inner wall of the filter chamber 6 is provided with a cleaning assembly 10 .

[0020] The cleaning assembly 10 includes a motor 1001, a rotating rod 1002 and a bracket 1004. The outer surface of the motor 1001 is fixedly embedded in the outer surface of the filter chamber 6, the outer surface of the rotating rod 1002 is rotatably connected to the inner wall of the filter chamber 6, and the output end of the motor 1001 is fixedly connected to one end of the rotating rod 1002.

[0021] The outer surface of the bracket 1004 is fixedly connected to the inner wall of the filter chamber 6, the outer surface of the rotating rod 1002 is fixedly connected to the first bevel gear 1003, the inner wall of the bracket 1004 is rotatably connected to the connecting shaft 1005, one end of the connecting shaft 1005 is fixedly connected to the second bevel gear 1006, and the second bevel gear 1006 is meshed with the first bevel gear 1003.

[0022] One end of the connecting shaft 1005 away from the second bevel gear 1006 is fixedly connected to a mounting plate 1007, and the outer surface of the mounting plate 1007 is fixedly connected to a cleaning brush 1008. In this embodiment, the motor 1001 can drive the rotating rod 1002 and the first bevel gear 1003 to rotate, and the second bevel gear 1006 engaged with the connecting shaft 1005, the mounting plate 1007 and the cleaning brush 1008 to rotate, thereby cleaning the smoke and dust on the surface of the filter plate 7, thereby ensuring the ventilation performance of the filter plate 7.

[0023] The air outlet end of the first fan 3 is fixedly connected to a chimney 11 , and the bottom surface of the chimney 11 is fixedly connected to the upper surface of the kiln body 1 .

[0024] A feeding furnace door 12 is provided at the left end of the kiln body 1, and a discharging furnace door 13 is provided at the right end of the kiln body 1. Rapid cooling fans 14 are provided on both sides of the kiln body 1. In this embodiment, the rapid cooling fan 14 can cooperate with a large amount of cold air blown in from the tail of the kiln to exchange heat with the high-temperature fired products to complete the cooling process of the products. Two symmetrical through holes 18 are provided on the inner wall of the kiln body 1, and two symmetrical guide grooves 19 are provided on the inner wall of the kiln body 1. A base 15 is fixedly connected to the bottom surface of the kiln body 1, and a driving device 17 is provided at one end of the base 15. A material transport vehicle 16 is provided on the outer surface of the base 15, and the outer surface of the material transport vehicle 16 is slidably connected to the inner wall of the guide groove 19.

[0025] Working principle: When using this embodiment, first, start the combustion chamber 2 to heat the air, and the high-temperature gas passes through the through hole 18 into the interior of the kiln body 1, and the material transport vehicle 16 is driven by the driving device 17 to transport the products to be fired to the interior of the kiln body 1 for firing. Then, the high-temperature gas enters the left side of the kiln body 1 under the guidance of the second fan 8 to preheat the products in stages, and the high-temperature gas under the guidance of the second fan 8 enters the interior of the main pipe 4 through the exhaust pipe 5. At this time, the high-temperature gas generated in the two groups of exhaust pipes 5 closer to the second fan 8 is sucked into the interior of the filter chamber 6 under the guidance of the second fan 8, and then the high-temperature gas inside the exhaust pipe 5 close to the first fan 3 is sucked into the filter chamber 6. The temperature of the body is reduced due to the long flow distance, and at this time, it is discharged through the chimney 11 under the attraction of the first fan 3. Finally, the high-temperature gas guided by the second fan 8 passes through the inside of the filter chamber 6, and the smoke particles in the high-temperature gas can be filtered out under the filtration of the filter plate 7. At this time, the starting motor 1001 drives the rotating rod 1002 and the first bevel gear 1003 to rotate, and the second bevel gear 1006 connected through meshing drives the connecting shaft 1005, the mounting plate 1007, and the cleaning brush 1008 to rotate, thereby cleaning the smoke particles on the surface of the filter plate 7, thereby maintaining the ventilation of the filter plate 7, and the filtered high-temperature gas is transported to the inside of the combustion chamber 2 through the connecting pipe 9 under the guidance of the second fan 8.

[0026] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] It should be noted that the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the instructions and drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the inventor will not elaborate on them here.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A crucible tunnel kiln structure, characterized in that: The invention comprises a kiln body (1), wherein combustion chambers (2) are installed on both sides of the kiln body (1), a filter chamber (6) is fixedly connected to the upper surface of the kiln body (1), a main pipe (4) is fixedly connected to the left side of the filter chamber (6), three groups of smoke exhaust pipes (5) are fixedly connected to the outer surface of the main pipe (4), and the inner wall of the smoke exhaust pipe (5) is connected to the inner wall of the kiln body (1), a filter plate (7) is inserted into the inner wall of the filter chamber (6), a second fan (8) is installed on the right side of the filter chamber (6), a connecting pipe (9) is fixedly connected to the air outlet end of the second fan (8), and the inner wall of the connecting pipe (9) is connected to the combustion chamber (2).

2. The crucible tunnel kiln structure according to claim 1, characterized in that: A first fan (3) is fixedly connected to the upper surface of the kiln body (1), an air suction end of the first fan (3) is fixedly connected to the outer surface of the main pipe (4), a cleaning component (10) is provided on the inner wall of the filter chamber (6), an air outlet end of the first fan (3) is fixedly connected to a chimney (11), and the bottom surface of the chimney (11) is fixedly connected to the upper surface of the kiln body (1).

3. The crucible tunnel kiln structure according to claim 1, characterized in that: The left end of the kiln body (1) is provided with a material inlet furnace door (12), the right end of the kiln body (1) is provided with a material outlet furnace door (13), both sides of the kiln body (1) are provided with rapid cooling fans (14), the inner wall of the kiln body (1) is provided with two symmetrical through holes (18), the inner wall of the kiln body (1) is provided with two symmetrical guide grooves (19), the bottom surface of the kiln body (1) is fixedly connected with a base (15), one end of the base (15) is provided with a driving device (17), the outer surface of the base (15) is provided with a material transport vehicle (16), and the outer surface of the material transport vehicle (16) is slidably connected to the inner wall of the guide groove (19).

4. The crucible tunnel kiln structure according to claim 2, characterized in that: The cleaning assembly (10) comprises a motor (1001), a rotating rod (1002) and a bracket (1004); the outer surface of the motor (1001) is fixedly embedded in the outer surface of the filter chamber (6); the outer surface of the rotating rod (1002) is rotatably connected to the inner wall of the filter chamber (6); and the output end of the motor (1001) is fixedly connected to one end of the rotating rod (1002).

5. The crucible tunnel kiln structure according to claim 4, characterized in that: The outer surface of the bracket (1004) is fixedly connected to the inner wall of the filter chamber (6); the outer surface of the rotating rod (1002) is fixedly connected to the first bevel gear (1003); the inner wall of the bracket (1004) is rotatably connected to a connecting shaft (1005); one end of the connecting shaft (1005) is fixedly connected to a second bevel gear (1006); the second bevel gear (1006) and the first bevel gear (1003) are meshed.

6. The crucible tunnel kiln structure according to claim 5, characterized in that: One end of the connecting shaft (1005) away from the second bevel gear (1006) is fixedly connected to a mounting plate (1007), and a cleaning brush (1008) is fixedly connected to the outer surface of the mounting plate (1007).

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